I use Nauticam D7100 for my D7200 and am less than impressed. Talking from experience of 7 years of using my last Subal, I found Nauticam unergonomic, poorly designed and not very long lasting. Might be good for some, but not for my type of diving. Add poor customer service (last turnaround time was 2 months), you end up paying significantly more than Subal.